3v4l.org

run code in 300+ PHP versions simultaneously
<?php function array_map_custom($array, $callable) { $result = []; foreach($array as $item) { $result[] = $callable($item); } return $result; } $arr = [1, 2, 3, 4]; $newArr = array_map_custom( $arr, function($x){ return $x*$x; }); print_r($newArr);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 1 [1] => 4 [2] => 9 [3] => 16 )

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
28.58 ms | 405 KiB | 5 Q